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Full text of "The Morphology And Evolution Of The Apes And Man"

CHAPTER II.
THE  NEW WORLD  MONKEYS   OR
PLATYRRHIXL
THE Platyrrhine Monkeys, so called on account of the wide partition separating their outwardly-directed nostrils, are diversified in form, structure and habits. But although they are more or less specialized, they all retain traces of their common ancestors. They also present characters which distinguish them sharply from the Old World Monkeys or Catarrhini. They are grouped in two families as follows:
Family I.    Hapalidse.   Marmosets (Hapale, Midas). ,,    II.    Cebidas.     Teetee (Gallicelnts) >  Dourou-
couli (Aotus), Howlers (Jilouatta), Spider Monkeys (AteJcs andJBradiy-teles), Sakis (Pithecia), Ouakaris (Gacajao), Capuchins (Cebus) and Squirrel Monkeys (Sa imim), Woolly Monkeys (LagotJiri-jr).
They   are  never  very large,  but  the  Marmosets  are diminutive.
All Platyrrhini are arboreal, and their progress among the trees may be assisted by a prehensile tail. They are vegetarian or insectivorous, and they will show discrimination in the selection of particular insects. Their disposition varies, some being bright and active,